Witch is a silver-ranked adventurer operating in a two-person party with Spearman. She possesses long purple hair reaching her thighs, with additional waist-length strands framing her face, and distinctive yellow eyes. Her physique is voluptuous, and she typically wears revealing robes paired with a large pointed hat, often seen smoking a pipe. She is renowned as one of the most beautiful women in the Frontier and across the Four-Cornered World.

Her personality combines an innately seductive and amorous air with a genuinely caring and supportive nature. She frequently employs suggestive language in everyday conversation, a tendency arising more from her disposition than deliberate intent. Despite her teasing manner, she readily offers guidance and assistance, particularly to less experienced adventurers who view her as a mature "big sister" figure. She tends to speak in terse, paused sentences, reportedly to avoid accidental spellcasting, though she has never confirmed this practice.

Witch registered with the Frontier Town Adventurer's Guild the same spring as Goblin Slayer and Spearman. Initially, other adventurers hesitated to join her party, believing her beauty and skill placed her beyond their reach. Early in her career, she accepted a low-reward quest to escort Cow Girl to her ruined hometown for closure, compelling Spearman to accompany her. During this journey, she encouraged Cow Girl to cut her hair so the world could better see her face and eyes.

Her magical repertoire focuses on utility and support rather than direct combat. She utilizes spells like Magic Missile for offense, Deflect Missile to ward off projectiles, and Sleep to incapacitate groups. She can also enchant weapons with magical fire. Additionally, she employs a crystal ball for remote observation and possesses magical items such as the Seeker Candle, which she gifted to Rookie Warrior and Apprentice Cleric to teach resource management.

Witch participates in significant events alongside Spearman. She fought allies against a magic-impervious Rock Eater in an abandoned gold mine, where Spearman saved her after her spells failed. She later identified magical items for Goblin Slayer, including a ring and a Gate Scroll linked to the ocean floor, agreeing to safeguard the scroll for him.

She frequently intervenes in Guild dynamics. She dispelled Rookie Warrior and Apprentice Cleric's misconceptions about Goblin Slayer, prompting them to reconsider their views. She instantly recognized Goblin Slayer when he appeared without his helmet, privately noting his handsome appearance. She also supported Guild Girl's romantic interest in Goblin Slayer by silencing Spearman during a key conversation, hoping he would realize Guild Girl lacked interest in him.

Later, she aided in defending Cow Girl’s farm against goblins, directing spell-casters from high ground with Dwarf Shaman. During a goblin assault on the Guild’s training center, she flooded underground tunnels to drown the invaders. She also joined investigations into undead threats and Chaos cult activities, collaborating with allies like Female Knight to thwart larger schemes.

In *Goblin Slayer: Goblin's Crown*, Witch appears solely in recap footage.